* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
:root {
  --colorYe: #eebc02;
  --colorYeDark: #d07e01;
  --colorBlueDark: #2e4276;
  --colorVio: #ec90bb;
  --blueGradient: linear-gradient(
    45deg,
    var(--colorBlueDark) 0%,
    var(--colorVio) 100%
  );
}
::-webkit-scrollbar {
  -webkit-appearance: none;
  width: 12px;
  height: 12px;
  background-color: transparent;
}
::-webkit-scrollbar-track {
  background-color: transparent;
  border: 1px solid rgba(200, 200, 200, 0);
}
::-webkit-scrollbar-track:hover {
  background-color: transparent;
  border: 1px solid rgba(200, 200, 200, 0);
}
::-webkit-scrollbar-thumb {
  border-radius: 12px;
  border: 4px solid rgba(255, 255, 255, 0);
  background-clip: content-box;
  background-color: var(--colorYe);
}
::-webkit-scrollbar-thumb:hover {
  border-radius: 12px;
  border: 4px solid rgba(255, 255, 255, 0);
  background-clip: content-box;
  background-color: var(--colorVio);
}
::-webkit-scrollbar-corner {
  background-color: #444;
}
body {
  background: url(https://source.unsplash.com/1600x900/) no-repeat;
  background-size: cover;
  background-position: center;
  height: 100vh;
  font-family: "Roboto Flex", sans-serif;
  font-style: normal;
}
h1,
h2,
h3,
h4,
h5,
h6 {
  color: transparent;
  max-width: fit-content;
  font-weight: 500;
  font-style: normal;
  line-height: 1.5;
  text-transform: uppercase;
  background-color: var(--colorVio);
  background-image: var(--blueGradient);
  background-clip: text;
  -webkit-background-clip: text;
}
#v-pills-tabContent button {
  font-size: 16px;
  font-weight: 600;
  padding: 15px;
  text-transform: uppercase;
  width: fit-content;
  height: max-content;
  background-color: var(--colorYe);
  border: none;
  outline: none;
}
#v-pills-tabContent button:hover {
  background-color: var(--colorYe);
  background-image: var(--blueGradient);
}
#v-pills-tabContent input {
  border-radius: 0;
  border: 1px solid var(--colorYe);
  outline: none;
  background: transparent;
  font-size: 20px;
  color: var(--colorYe);
  height: 50px;
}
#v-pills-tabContent input:focus,
#v-pills-tabContent input:hover {
  outline: none;
  box-shadow: none;
  border-color: var(--colorVio);
  border-style: dotted;
}
#v-pills-tabContent input:disabled {
  color: #555;
  border: 1px solid #555;
}
#v-pills-tabContent input:disabled:hover {
}
.btnClear {
  padding: 3px 7px;
  position: absolute;
  right: 15px;
  top: -5px;
  font-size: 9px;
  text-transform: uppercase;
  line-height: 1;
  color: #999;
  background-color: #555;
  margin-top: 10px;
}
.btnClear:hover {
  border-color: #999;
}
/* ==================== */
#v-pills-tab {
  background-color: #141213;
  border-radius: 10px 0 0 10px;
  /* overflow: hidden; */
}
#v-pills-tab button {
  padding: 0;
  border-radius: 0;
  text-align: left;
  height: 65px;
  /* margin-bottom: 30px; */
}
#v-pills-tab button:last-of-type {
  margin-bottom: 0;
}
.nav-pills .nav-link.active,
.nav-pills .show > .nav-link {
  background-color: #141213;
  background-image: linear-gradient(
    to left,
    #141213 0%,
    #474546 45%,
    #474546 100%
  );
}
#v-pills-tab button span {
  font-size: 98px;
  font-weight: 500;
  line-height: 68px;
  color: var(--colorYe);
}

#v-pills-tab button span .percent {
  display: inline-block;
  background-color: var(--colorYe);
  height: 100%;
  float: left;
  margin-right: -11px;
  background-image: linear-gradient(
    to right,
    var(--colorYeDark) 0%,
    var(--colorYe) 75%,
    var(--colorYe) 100%
  );
}
#v-pills-tab button:first-of-type,
#v-pills-tab button:first-of-type span .percent {
  border-radius: 10px 0 0;
}
/* #v-pills-tab button:last-of-type,
#v-pills-tab button:last-of-type span .percent {
  border-radius: 0 0 0 10px;
} */
.per-20 {
  width: 12%;
}
.per-40 {
  width: 25%;
}
.per-60 {
  width: 33%;
}
.per-80 {
  width: 40%;
}
.per-100 {
  width: 55%;
}
#v-pills-tabContent {
  color: #fff;
  /* border: 2px solid #141213; */
  height: 85vh;
  overflow: auto;
  border-radius: 0 10px 10px 10px;
  background-color: #505455;
  background-image: linear-gradient(to right, #141213 0%, #474546 100%);
}
/* bài tập */
#v-pills-tabContent input::placeholder {
  font-size: 11px;
  color: #999;
}
#v-pills-tabContent span.number .increase,
#v-pills-tabContent span.number .decrease {
  position: absolute;
  right: 25px;
  width: 0px;
  height: 0px;
  border-style: solid;
  font-size: 14px;
  line-height: 15px;
  text-align: center;
  text-indent: -99999px;
  cursor: pointer;
}
#v-pills-tabContent span.number .increase {
  border-width: 0 10px 8px 10px;
  border-color: transparent transparent var(--colorVio) transparent;
  top: 42px;
}
#v-pills-tabContent span.number .increase:hover {
  border-color: transparent transparent var(--colorYe) transparent;
}
#v-pills-tabContent span.number .decrease {
  border-width: 8px 10px 0 10px;
  border-color: var(--colorVio) transparent transparent transparent;
  bottom: 10px;
}
#v-pills-tabContent span.number .decrease:hover {
  border-color: var(--colorYe) transparent transparent transparent;
}
#v-pills-tabContent span.number i {
  opacity: 0;
  transition: all 0.5s;
}
#v-pills-tabContent span.number:hover i {
  opacity: 1;
}
.result {
  line-height: 2;
  opacity: 0;
  transition: all 0.5s;
}
.result .salary {
  color: var(--colorYe);
  padding: 8px 30px;
  border: 1px dotted var(--colorYe);
}
/* Bài 1 */

/* ====================| CSS responsive |================= */
/* `xxl` applies to x-large devices (large desktops, less than 1400px) */
@media screen and (max-width: 1399.98px) {
}

/* `xl` applies to large devices (desktops, less than 1200px) */
@media screen and (max-width: 1199.98px) {
  #v-pills-tab button {
    height: 55px;
  }
  #v-pills-tab button span {
    font-size: 80px;
    line-height: 58px;
  }
}
/* fix home product gallery only */
@media screen and (max-width: 1199.98px) and (min-width: 992px) {
}

/* `lg` applies to medium devices (tablets, less than 992px) */
@media screen and (max-width: 991.98px) {
  .per-20 {
    width: 10%;
  }
  .per-40 {
    width: 13%;
  }
  .per-60 {
    width: 22%;
  }
  .per-80 {
    width: 30%;
  }
  .per-100 {
    width: 32%;
  }
  #v-pills-tabContent #btnTinhDienTich {
    width: 100%;
  }
}
/* `md` applies to small devices (landscape phones, less than 768px) */
@media screen and (max-width: 767.98px) {
  #v-pills-tab {
    border-radius: 10px 10px 0 0;
  }
  #v-pills-tab button span {
    font-size: 40px;
  }
  #v-pills-tab button {
    padding: 10px;
    border-radius: 8px 8px 0 0;
  }
  #v-pills-tab button span .percent {
    background-color: transparent;
    margin-right: 10px;
    width: 0;
    border-radius: 8px 8px 0 0;
  }
  .nav-pills .nav-link.active,
  .nav-pills .show > .nav-link {
    background-color: #141213;
    background-image: linear-gradient(
      to top,
      #141213 0%,
      #474546 45%,
      #474546 100%
    );
  }
  #v-pills-tab button:first-of-type,
  #v-pills-tab button:first-of-type span .percent {
    border-radius: 8px 8px 0 0;
  }
  #v-pills-tabContent {
    border-radius: 0 0 10px 10px;
  }
  #v-pills-tabContent button {
    /* max-width: 100%; */
    width: 100%;
  }
}

/* `sm` applies to x-small devices (portrait phones, less than 576px) */
@media screen and (max-width: 575.98px) {
}
/* fix to xx-small devices */
@media screen and (max-width: 500px) {
}
@media screen and (max-width: 328px) {
}
/* ==================| end CSS responsive |=============== */